11–19Win–Loss
36.7%Win %
0Titles
| Surface | W | L | % |
|---|---|---|---|
| Hard | 11 | 17 | 39.3% |
| Clay | 0 | 1 | 0.0% |
| Grass | 0 | 1 | 0.0% |
Season by season
| Year | W | L | Titles | % |
|---|---|---|---|---|
| 2022 | 1 | 1 | 0 | 50.0% |
| 2019 | 0 | 3 | 0 | 0.0% |
| 2018 | 0 | 2 | 0 | 0.0% |
| 2017 | 2 | 3 | 0 | 40.0% |
| 2016 | 5 | 4 | 0 | 55.6% |
| 2014 | 0 | 1 | 0 | 0.0% |
| 2013 | 0 | 1 | 0 | 0.0% |
| 2012 | 1 | 1 | 0 | 50.0% |
| 2011 | 2 | 2 | 0 | 50.0% |
| 2010 | 0 | 1 | 0 | 0.0% |
Ranking history
Matches
| Date | Tournament | Round | W/L | Opponent | Opp. rank | Score |
|---|---|---|---|---|---|---|
| 2022-10-10 | Seoul CH | R16 | L | James Duckworth | 114 | 7-6(6) 6-1 |
| 2022-10-10 | Seoul CH | R32 | W | Zsombor Piros | 138 | 4-6 6-3 3-0 RET |
| 2019-08-26 | Baotou CH | R64 | L | Ivan Nedelko | 358 | 6-2 6-3 |
| 2019-05-13 | Gwangju CH | Q1 | L | Min Kyu Song | 653 | 6-4 6-4 |
| 2019-04-29 | Seoul CH | R64 | L | Shintaro Imai | 673 | 6-1 6-3 |
| 2018-08-13 | Gwangju CH | R32 | L | Duck Hee Lee | 241 | 7-6(4) 6-2 |
| 2018-05-14 | Busan CH | Q1 | L | Maverick Banes | 350 | 6-3 6-4 |
| 2017-05-15 | Busan CH | R16 | L | Tatsuma Ito | 180 | 6-2 1-6 6-1 |
| 2017-05-15 | Busan CH | R32 | W | Yuuya Kibi | 313 | 6-1 4-6 6-4 |
| 2017-05-08 | Seoul CH | R32 | L | Dudi Sela | 117 | 7-5 6-3 |
| 2017-05-01 | Gimcheon CH | Q2 | L | Liam Broady | 394 | 7-5 6-3 |
| 2017-05-01 | Gimcheon CH | Q1 | W | Sidharth Rawat | 565 | 7-6(7) 6-3 |
| 2016-07-15 | Davis Cup G1 R2: IND vs KOR | RR | L | Rohan Bopanna | 1373 | 3-6 6-4 6-4 |
| 2016-05-09 | Seoul CH | Q3 | L | Frederik Nielsen | 383 | 7-5 4-6 6-4 |
| 2016-05-09 | Seoul CH | Q2 | W | Connor Smith | 309 | 6-4 6-2 |
| 2016-05-09 | Seoul CH | Q1 | W | Toshihide Matsui | 858 | 6-4 6-2 |
| 2016-05-02 | Busan CH | Q2 | L | Yong Kyu Lim | 890 | 7-6(11) 7-5 |
| 2016-05-02 | Busan CH | Q1 | W | Chung Hyo Woo | 1858 | 6-1 6-3 |
| 2016-04-11 | Gwangju CH | QF | L | Ricardas Berankis | 80 | 6-4 6-2 |
| 2016-04-11 | Gwangju CH | R16 | W | Yong Kyu Lim | 931 | 7-5 6-2 |
| 2016-04-11 | Gwangju CH | R32 | W | Yan Bai | 202 | 4-6 7-6(1) 6-2 |
| 2014-05-05 | Gimcheon CH | R32 | L | Go Soeda | 123 | 6-3 6-4 |
| 2013-11-04 | Yeongwol CH | R32 | L | Alexander Kudryavtsev | 267 | 6-1 6-2 |
| 2012-05-07 | Busan CH | R16 | L | Tatsuma Ito | 81 | 6-2 6-7(1) 6-2 |
| 2012-05-07 | Busan CH | R32 | W | Cheong Eui Kim | 1348 | 6-3 6-2 |
| 2011-10-17 | Seoul CH | QF | L | Amer Delic | 218 | 7-5 6-4 |
| 2011-10-17 | Seoul CH | R16 | W | Min Kyu Song | 1224 | 6-1 3-6 6-3 |
| 2011-10-17 | Seoul CH | R32 | W | Grega Zemlja | 117 | 6-7(9) 6-4 6-3 |
| 2011-09-16 | Davis Cup G2 R3: KOR vs THA | RR | L | Kittipong Wachiramanowong | 511 | 6-4 5-6 Played and abandoned |
| 2010-10-18 | Seoul CH | R32 | L | Yen Hsun Lu | 39 | 6-3 6-2 |